Sustainability in single-species population models Sustainability in single species population models

This service is more advanced with JavaScript available, learn more at http: What do you think about Springer Nature and its family of journals? Tell us in our 10 minute survey. A range of published 3-parameter, single-species models are compared using possums in New Zealand as an example.

Most models yield similar population growth curves and similar estimates of maximum sustainable yield MSY. A new model of competition for refuges, and interactive models of competition for food, both yield growth curves peaked to the right. In the second case, the relationship between the shape of the curve and the parameters of the interactive model is described.

Three management consequences of asymmetric rightward-peaked growth as opposed to logistic growth are discussed. First, where the animal is a pest a greater control effort is required to reduce density.

Second, for sustained yield harvesting the best policy is an adaptive one which initially requires no knowledge of check this out shape of the growth curve. Unable to display preview. A comparison of 3-parameter, single-species population models, in relation to the management of brushtail possums in New Zealand. Authors Authors and affiliations N. Bellows TS Jr The descriptive properties of some models for density dependence.

Clark CW Mathematical bioeconomics. NZ J Ecol 5: NZ J Ecol 3: Aust J Zool See more GM A field study of local populations of the brush-tailed possum Sustainability in single species population models vulpecula in eastern Australia.

Sustainability in single-species population models | Read by QxMD Sustainability in single species population models

Do you want to read the rest of this article? For full functionality of ResearchGate it is necessary to enable JavaScript. Here are the instructions how to enable JavaScript in your web browser. Citations Citations 6 References References The Mediterranean Sea constitutes one of the 25 biodiversity hotspots already recognised on a planetary scale Myers et al.

However, habitat degradation memmingen singleparty fishing exploitation have generated a strong impact on marine fauna in the last decades Colloca et al. Those threats, together with climate change, have been predicted to grow within the next decade, further affecting biodiversity in the Mediterranean Coll et al. Feeding strategies and resource partitioning among elasmobranchs and cephalopods in Mediterranean deep-sea ecosystems.

In the Mediterranean, stock conditions and fleet production are generally impaired by a combination of high fishing mortality and suboptimal exploitation patterns, sustainability in single species population models many small-sized catches determined by aug single point sling characteristics, such as the small mesh size in the trawl cod-end.

The results of the present paper confirmed this finding, showing that the potential losses caused by the reduced activity were overcompensated by the positive effect of Арчи partnersuche mit behindertem kind Черт reduction on the stock productivity. A Holistic Approach to Fishery Management: Unfortunately, most of the Mediterranean fish stocks are currently overexploited Colloca et al. In that fishery, commercial catch is entirely composed of species from cold and temperate latitudes that have decreased during the past decade as a consequence of global warming.

Climate impact on Italian fisheries Mediterranean Sea. Mar Reg Environ Change. Discover more publications, questions and projects in Population Modeling. Spatial Modelling using spatial stats and GIS tools. Discard and bycatch isues and fisheries management. The main objective of LIFE iSEAS is to demonstrate that a sustainable scenario in terms of biological sustainability in single species population models socio-economic indicators of the EU fisheries is possible through the enhancement of the …" [more].

Advice to fishing management. Marine Sponges as Biomonitor of Polychlorobiphenyl Contamination: Concentration and Fate of 24 Conge The aim of this study was first to assess the sustainability in single species population models of a marine sponge, Spongia officinalis, as a biomonitor of PCB. Twenty-four chlorobiphenyl congeners have been measured sustainability in single species population models a pollution gradient both in sponges and seawater.

The highest concentration factors were found for hexa- and heptachlorobiphenyls European Marine Biodiversity Indicators. Evolution and conservation of marine biodiversity facing global change: Overall this project allowed us to better understand the impact of climate change as well as to reveal the underlying biological and genetic factors involved in the resistance of populations exposed to severe disturbances such as those related to Data provided are for informational purposes only.

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UMTMOOC - Basic Parameter of Single Species Population : Life Histories

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In this paper, we review the concept of sustainability with regard to a single-species, age-structured fish population with density dependence at some stage of its.
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Single-species Population Dynamics ble sustainable yield, The graphical analysis of equilibrium stability suggests that single-species models dN/dt = f(N).
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Single-species Population Dynamics ble sustainable yield, The graphical analysis of equilibrium stability suggests that single-species models dN/dt = f(N).
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Single-species Population Dynamics ble sustainable yield, The graphical analysis of equilibrium stability suggests that single-species models dN/dt = f(N).
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